Machine for the manufacture of gimp threads



Feb. 13, 1923.

1,445,199. A. BRUDE.

MACHINE FOR THE MANUFACTURE OF GIMP THREADS.

FILED JUNE 24,1921- 5 SHEETS-SHEET I.

5 SHEETSSHEET 2' A. BRUDE. MACHINE FOR THE MANUFACTURE OF GIMP, THREADS.

' FILED JUNE 24. 1921 Feb.

A. BRUDE.

MACHINE FOR THE MANUFACTURE OF GIMP THREADS. FILED JUNE 24, 1921.

5 SHEETSSHEE T 3.

Feb. 13, 1923. v

A. BRUDE.

MACHINE FOR THE MANUFACTURE 9F GIMP THREADS- mzo JUNE 24,192'1.

5 SHEETS-SHEET 4.

/ K ars Feb. 13, 1923.

A. BRUDE. MACHINE FOR THE MANUFACTURE OF GIMP THREADS.

5 SHEETS-SHEET 5- FILED JUNE 24, I921.

nane tries.

Arvin nnunnor LYON, rnanon.

JlJIACZ-IINE 1 R TMANUFACTURE OF GEM? THREADS.

Application filed June 2 T 0 all whom itmay concern:

Be it known that I, iii-sin Bar on, a citizen of the French Republic,and resident of Lyon, France, have invented certain new and usefulImprovements in ltlachines for the Manufacture of Gimp Threads (forwhich I hams: filed applications for patents in France, No. 51.2,l57,March 10, 1920, Belgium March 30, 1921, Italy May 18, 1921,

and Great Britain ilay 20, 1921), of which the following is aspecification.

This invention relates to improvements in machines for the manufactureof gimp threads with the object of obtaining uniform covering for eachthread and of malt ing possible simultaneous production on one machineof different articles requiring variable winding speeds for each bobbin.

This object is obtained by the combinzu tion with the usual Controllingarrangement of a separate control for each bobbin for varying the speedof the latter according to the size of the sheath covering the core ofcotton or other textile fibres or according to 2.5 the conditionsrequired for each article.

The invention also comprises other improvements in the construction andarrange ment of certain members of the machine which will be hereinafterindicated with reference to the accompanying drawings, which show by wayof example two heads of the machine for the manufacture of gimp threadconstructed according to the invention.

Fig. 1 is a front view.

2 is a side view.

Fig. 3 is a front elevation partly in seotion of the driving arrangementsituated at the back of the machine which is shown at the back inFig. 1. V

Fig. at is a detail view partly in section and on an enlarged scale ofthe arrangement for regulating the speed of each bobbin.

Fig. 5 is a longitudinal section on line 5--5.

Fig. 6 is a section on line 6-6 of Fig. 2 showing the clutch mechanism.

Fig. '7 is a detail view showing the method of mounting; the bobbins onpoints.

Figs. 8 and 9 are respectively front and 50 end views of a modificationof the rollers on to which the thread is wound.

Fig. 10 shows further variation of the points forming the trunnions forthe rotat ing parts.

ed small wheels 2 held on their shaft by On the frame 1 of the machineare mount- 1921. Serial No. 480,130.

catches2 pivoted at 2" which when they are raised (position indicated atthe right of Fig. 2) permit the said shaft to be easily lubricated. Thecores of cotton or other textile material pass in the usual way throughthese wheels being unwound from a bobbin l and being covered by ametallic sheath 5 which is unwound from the bobbin 6 on the shaftcarrying the wheel 2. The latter is driven at a constant speed ofrotation by a cord or round belt 7 from a groove pulley 8 mounted on thedriving shaft 9 of the machine.

The shaft 9 has a keyway 10 extending for the whole of its'length andthe various pulleys 8 are loosely mounted on the shaft. They are aflixedto the shaft by the pressure of a ring 11 provided on its face with disc12 of friction material, to facilitate the frictional engagement betweenthe surfaces. The ring 11 is normally under the control of a spring 13placed between it and a collar 14: fixed'on the shaft 9. Each ring 11 isprovided with a key engaging with the key way 10, by means of which itcan be dis placed longitudinally but at the same time remain inengagement with the shaft 9. The ring 11 is displaced longitudinallvloymeans of a clutch-lever 15 pivoted at 16 to the lower transverse bar 17of the frame. The rod 19 of a f0rk20 is affixed by two screws 18 to thelever 15 which fork engases in a circular groove 21 in the ring 11.

Each pulley 8 is provided with a sleeve 22 having a worm formed thereonwhich engages a worm. wheel 23 keyed on a shaft 24 rotating on thepoints 25 and 26.

The shaft 24 carries near its end a keyway 27 along which can be moved aroller 28 of leathenrubber or other suitable material. The roller 28v isaffixed to a small grooved wheel29 having a keyv 3O engaging the lreyway27 which causes it to rotate,.with the shaft 2% but allows of it beingmoved longitudinally thereon. A guide 31 engages in the groove in thepulley 29 and this guide forms the nut of a screw 32 carriedin bearing33 fixed to'the frameofthe machine. consequently the longitudinaldisplacement of the guide 31, the pulley 29 and the roller 28 areobtained by the rotation of the thumb screw 34, fixed on the end of thescrew 32.

The roller 28 is mounted at right angles to a plate 35 carried on ashort shaft 36 rotating between two points 37 and 38 car- The rotationof the screw 32and ried in extensions 39 and d0 of the bearing It ispressed against the plate by a spring 41 placed between the latter and acollar 42 on the shaft 36.

The plate 35 is arranged below the bobbin 43 on to which the finished.article is wound, and is in frictional contact therewith. The bobbin 43rotates on points 4A carried by a fork 4.5 oscillating about alongitudinal shaft d6 to give a permanent contact with the frictionplate which is preferably larger than the bobbin 43. The mounting of thebobbin 43 between two points, one of which is movable and only held inposi tion by the pressure of a spring 4:7, permits a full bobbin to bereadily removed and replaced by an empty bobbin.

During the working of the machine the different shafts driven at aconstant speed cause the rotation of the rollers 28 engaging the plates35. To vary the speed of rotation of the latter independently ofoneanother it is only necessary to move the point of contact of theroller 28 with the plate 35. This movement is obtained very readily byrotating the thumb screw 34 to the right or to the left. The bobbin 4-3is thus driven at a greater or less speed according to the size of thesheathing 5 or to the nature of the work to be produced, and there isthus obtained an absolutely regular covering of the core of cotton orother textile material.

For certain articles it is advisable that the gimp thread should not besubmitted to the pressing action of a roller and in other cases thatitshould receive a pressure suliicient to exert a flattening effect onthe thread which is thus flattened to form an article known under, thename of laminette.

In the first case (Figs. 9 and 10) the gimp thread 50 guided by thepulleys 51 and passes in the grooves of two pulleys 5a and 55 beforebeing finally wound on to the bobbin 43. The latter is driven by thefriction. of a plate 35 which is not directly in contact with the layersof the thread but on. the flange 43 of the bobbin 43. To produce aflattened thread the rollers 53 and are not providedwith grooves for thepassage of the thread but are made of polished steel and pressed firmlytogether by means of a sprlng or counter-weight to cause flattening ofthe thread passing between them,

To facilitate the lubrication of the bear product, driven by thefirstmained ings of the rotating parts it is advisable that the shaftssuch as the shafts i i should end in a point 24 rotating in a bearing 26(see Fig. 10). I

W hat I claim and desire to secure by Letters Patent is 1. In a machinefor making gimp thread, a drive shaft, a core wheel mounted forrotation, a metallic sheath bobbin mounted for rotation with said wheel,a pulley on the drive shaft, a belt connecting said pulley and said corewheel, a second shaft geared to the drive shaft, a third shaft, awinding bobbin for the finished product, means to cause said windingbobbins to be driven from said third shaft. and means to cause saidthird shaft to be driven from s id second shaft at varying rates ofspeed as re quired to regulate the speed. of the winding bobbin.

2. In a machine for making gimp thread, a drive shaft, a core wheelmounted for rotation, a metallic sheath bobbin mounted for rotation withsaid wheel, a pulley loose on the drive shaft, a belt connecting saidpulley and said core wheel, a worm revoluble with said pulley, means,including a friction element, to cause said pulley and worm to be drivenby the drive shaft, a second shaft geared to the .drive shaft, a thirdshaft, a winding bobbin for the finished product, means to cause saidwinding bobbin. to be driven from said third shaft, and means to causesaid third shaft to be driven from said second shaft at varying rates ofspeed as required to regulate the speed of the winding bobbin.

3. In a machine for making gimp thread, a drive shaft, a core wheelmounted for rotation, a metallic sheath. bobbin mounted for rotationwith said wheel, a pulley on the drive shaft, a belt connecting saidpulley and said core wheel, a second shaft geared to the drive shaft, athird shaft having a friction gear, a friction. gear shiftable on thesecond shaft and engaged with and radially shiftable on one side of thefirst-named friction gear, means to adjust sa id shiftable gear, and awinding bobbin for the finished friction gear.

In witness whereof allin my signature.

AIME BRUDE. lVitnesses JULIAN Dniunnr. Lunnenno, JEAN GLRUWAN.

